Wireline hydraulic retrieving tool

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5228507
SERIAL NO

07749176

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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In wireline operations, it is known to retrieve objects stuck in a well bore by application of a retrieving force applied to the object through the wireline and a wireline pulling tool attached to the wireline and engaged with the object. The present invention provides a wireline retrieving tool which is adapted to apply a large retrieving force on a pulling tool engaged with an object in the well bore without having that force transmitted directly through the wireline. The retrieving tool is adapted to be lowered into the well bore on the wireline to a position where the pulling tool engages the stuck object. Slips carried on in the tool then anchor the tool against the tubular casing or tubing of the well bore and a controlled retrieving force generated in the tool by an electric motor and hydraulic pump is applied between the casing or tubing and the pulling tool to dislodge the object.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
INTEGRATED PRODUCTION SERVICES LTDSUITE 1500 840 -7TH AVENUE SW CALGARY AB T2P 3G2

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Obrejanu, Marcel 248 Riverbend Dr., SE., Calgary, Alberta, CA 18 248
Weiler, David H 51 Tararidge Close, NE., Calgary, Alberta, CA 3 108

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